I had a plan.
Almost all of the hunters take bearings from their car and elsewhere using a beam antenna that they have to sweep while watching the amplitude of the signal to determine the angle of the maximum signal. This works great with good sensitivity and accurate bearings as long as the signal is on long enough to sweep the antenna. If it too short to get much of a sweep angle you note the magnitude and wait for the next transmission and get some more angles swept. You can continue this until you have located a the maximum and go for it. But what if the transmitter changes strength between transmissions? I had built a rotation hidden transmitter back in the 70s but didn’t appreciate the short transmission factor, so now is a chance to try again. I built two spinning antennas a four element Yagi vertically polarized and a three element vertical Yagi. The spin was about 5 RPM and the transmission was about 4 seconds long so it wasn’t obvious it was spinning. (I later found out that some hunters thought I was driving around with the transmitters in my car and I got searched a couple times). So the timing was doing its job.
I prepared12 transmitter. I
didn’t intend to hide 12 but it was such a fine day
although a little warm. I hid 8. I needed to be sure
they would know about T2 (the transmitter at the South
left the house around 7 am and arrived at the spot for
T4 (a little wooded park in a gully in the middle of a
housing tract with only a path for entry and no parking)
and set up the rotator and stuff and turned it on at
about 8 AM. On to T3 and set up the second spinning
transmitters. I broke the mount and had to tie it to an
existing fence post and had to raise it up a couple feet
to clear some existing bushes with its spinning antenna.
And got it running by . Raced to the end of
I turned on the after-burner on the Prius and flew to where I knew I could get in and by I had T10 on the air running 30 watts into a 17 element beam pointed at Baldy. I was tightening the antenna sections after I turned it on and accidentally touched my cheek to the end of 10th director element while it was transmitting and now I have a little burn spot on my cheek.
The come-on transmitters were
next. T9 on the east side across the street from a
church with a clear look at T2 and T9 at the
T1 (Sign in T5) Nano T 25 mw wire dipole vertical hanging in a bush 34 0.7247
T2 (Sign in T8) Micro T voice “WB6JPI TEE TWO” 200 mw horiz dipole 33 59.8524
T9-1 (Sign in T9) 20 W Ringo in bush by Church 34 0.8654
T9-2 (Sign in T 10) 2 w into square ant hanging from tower strut
T9-3 (Sign in T8) 3 W 4 el vert but not connected. 34 0.7156
T10 (Sign in T1) 30 watts 17 el horiz 33 58.5394
“WB6JPI” (Sign in T3) Micro T, 15 sec 3el vert spinning
“WB6JPI” (sign in T4) Micro T, 30
sec 4 el vert spinning
Transmitters are by sign in sheets numbers T1:(T10) T2(T2) T3(JPI-1) T4(JPI-2) T9(T10) T10(T9-2) FND MILES N6AIN 63.9 122.8 DNF 116.5 106.6 100.6 5 N6MI 69 105 99 102 76 49 6 105 WIN AB6PA 86 DNF 103.5 DNF 96 170 4 WA6RJN 75.1 109.1 62.1 65.7 83.5 87.9 6 109.1 KF6GQ 112.3 DNF DNF 119.3 DNF 101.6 3 WA6CYY DNF DNF DNF DNF 82.5 DNF 1